Patents for H03H 15 - Transversal filters (1,369)
01/1997
01/28/1997US5598433 Automatic equalizer and data mode convergence method
01/28/1997US5598432 Equalizing received signal samples by receiving input in a first register at a first rate greater than or equal to the transmission rate and further receiving samples into a plurality of register at a second rate lower than the first rate
01/22/1997EP0755160A2 Comb filter device
01/21/1997US5596605 Radio receiver for use in the reception of digital multiplexing signals
01/07/1997CA2047164C Adaptive equalizer with channel impulse response estimation
01/01/1997CN1033733C Control signal spreader
12/1996
12/31/1996CA2104338C Adaptive equalizer method and apparatus
12/18/1996EP0627136B1 Method and apparatus for ghost cancelling and/or equalizing
12/03/1996US5581581 Viterbi equalizer
12/03/1996US5581494 Adaptive discrete-time transversal filter
11/1996
11/26/1996US5579344 Adaptive maximum likelihood sequence estimation apparatus and adaptive maximum likelihood sequence estimation method
11/26/1996US5579340 Waveform equalizer
11/19/1996US5577066 Charge-coupled-device based data-in-voice modem
11/05/1996US5572545 Process for starting up a modem containing a variable-phase echo canceller and modem in which such a process is implemented
10/1996
10/09/1996CN1132969A Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers
10/08/1996US5563888 Carrier offset tracking for a receiver using channel impulse response
10/08/1996US5563819 Fast high precision discrete-time analog finite impulse response filter
10/08/1996US5563812 Filter device including analog and digital circuitry
10/08/1996CA2061078C Adaptive equalizer which carries out an equalization operation with reference to a magnitude of fading
10/02/1996EP0484383B1 Digital filter and method of design
09/1996
09/18/1996EP0667066B1 Echo compensation device
09/04/1996CN1130330A Composite wave filter
08/1996
08/29/1996WO1996026573A1 Distortion correction device for a path of propagation in transmission systems
08/28/1996EP0729228A1 Basic cell for programmable analog time continuous filter
08/27/1996CA2036175C Control signal spreader
08/22/1996DE19505611A1 Vorrichtung zur Entzerrung einer Fehlerstrecke in einem Übertragungssystem Device for equalizing a distance error in a transmission system
08/20/1996US5548570 Optical reproducing circuit having, a binarized signal pulse compensation circuit
08/13/1996US5546460 Echo compensation device and 4/2-wire interface having such an echo compensation device
07/1996
07/23/1996CA2078049C Decision-feedback equalizer capable of producing an equalized signal at a high speed without a remaining fading
07/16/1996US5537419 Receiver sample timing adjustment using channel impulse response
07/02/1996US5532755 Apparatus for suppressing ghosts in signals modulating a carrier in quadrature phasing with a video carrier
06/1996
06/18/1996US5528311 Complex filter apparatus for use in an equalizer
06/04/1996US5524149 Circuit arrangement for echo suppression
06/04/1996US5524022 Digital graphic equalizer
05/1996
05/21/1996US5519727 Adaptive equalizer
05/14/1996US5517524 For a time division multiple access system
05/09/1996WO1996013898A1 Filter, repetitive control system and learning control system both provided with such filter
05/01/1996CN1121660A Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus
04/1996
04/30/1996CA2037535C Demodulating system capable of accurately equalizing received signals using error correction codes
04/24/1996CN1031676C Charges coupling comb filter
04/23/1996US5511014 Method for determining the transmittance of a filter circuit adapted to transform the impulse response of a filter into a minimal phase response and filter implementing this method
04/04/1996DE19535839A1 Automatischer Amplitudenentzerrer An automatic amplitude
04/03/1996CN1119802A Digital filter circuit and signal processing method for the same
04/02/1996US5504633 Apparatus, having a variable equalizer, for reproducing a digital signal from a record carrier
03/1996
03/26/1996US5502664 Filter device including SRAM and EEPROM devices
03/20/1996EP0702467A1 Digital transmission system synchronizable on initialization sequences
03/19/1996US5500810 Filter device with memory test circuit
03/13/1996EP0701350A2 Blind transversal equaliser
03/06/1996EP0512106B1 Spectrally selective dithering and color filter mask for increased image sensor blue sensitivity
02/1996
02/27/1996US5495501 Communication system including a digital roll-off filter
02/20/1996US5493585 Semi-recursive adaptive equalizer
02/20/1996CA2044707C Adaptive equalizer capable of effectively removing a remaining fading in an equalized signal
02/14/1996EP0696856A2 DS/CDMA receiver having an interference cancelling function capable of assuring a desired reception quality in a narrow-band DS/CDMA system
02/13/1996US5491726 Method and apparatus to determine the frequency and time slot position in a digital wireless communication session
01/1996
01/24/1996CN1115541A Apparatus for suppressing ghosts in signals modulating a carrier in quadrature phasing with a video carrier
01/23/1996US5487085 Transmission system with improved equalizer
01/16/1996US5485273 Ring laser gyroscope enhanced resolution system
01/03/1996EP0690566A1 Filtering method and digital over sampler filter with a finite impulse response having a simplified control unit
01/02/1996US5481565 Method for identifying symbols
12/1995
12/27/1995EP0688476A1 Digital time signal filtering method and device for transmission channel echo correction
12/20/1995EP0688099A1 Adaptive filter capable of removing a residual echo at a rapid speed
12/12/1995US5475710 Adaptive equalizer and receiver
12/07/1995WO1995033306A1 Signal processing device
11/1995
11/29/1995EP0663085A4 Method and apparatus for reduced-complexity viterbi-type sequence detectors.
11/28/1995US5471501 Enhanced digital communications receiver using channel impulse estimates
11/28/1995CA2055847C Decision feedback equalizer
11/23/1995WO1995031864A1 Charge-coupled-device base data-in-voice modem
11/18/1995CA2063165A1 Ring laser gyroscope enhanced resolution system
11/14/1995US5467370 Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling
10/1995
10/12/1995CA2146579A1 Received signal processing device, particularly for a mobile digital radiocommunication system
10/11/1995EP0676869A1 Reception processing apparatus with switchable decision block for reduction of power consumption
10/04/1995EP0675622A2 Process and system for transferring vector signal with precoding for signal power reduction
09/1995
09/27/1995EP0674393A1 Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus
09/12/1995US5450445 Method and arrangement of estimating data sequences transmitted using viterbi algorithm
09/06/1995EP0670639A1 Reduced complexity MLSE receiver using modified tap weights and symbol derotation
09/05/1995US5448590 Equalization technique for compensating for degradation to the transmission of digitally modulated signals
08/1995
08/16/1995EP0667066A1 Echo compensation device.
08/15/1995CA2036757C Traveling wave type transversal equalizer
07/1995
07/26/1995EP0664187A1 Grinding tape and method of manufacturing the same
07/19/1995EP0663085A1 Method and apparatus for reduced-complexity viterbi-type sequence detectors
07/12/1995EP0560945A4 Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media
07/05/1995EP0661833A1 Baseband amplitude/frequency characteristic estimator
07/05/1995EP0661832A2 Method of and apparatus for identifying a system with adaptive filter
07/04/1995US5430661 Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media
07/01/1995CA2139218A1 Multiphase signal amplitude-frequency characteristic basebaud estimator
06/1995
06/28/1995EP0660543A2 System and method of adaptive maximum likelihood sequence estimation
06/28/1995EP0660321A2 Reproduced waveform equalization circuit
06/27/1995US5428681 Apparatus and method for reducing the risk of undesirable parameter drift of an adaptive filter used for echo cancellation
06/06/1995US5422606 Automatic equalizer
06/06/1995CA2023178C Wideband digital equalizers for subscriber loops
05/1995
05/23/1995US5418817 Adaptive equalization system and method
05/23/1995US5418816 Automatic equalizer
05/23/1995CA2019736C Luminance signal/chrominance signal separating circuit and a noise reduction circuit using a 3 line logical comb filter
05/23/1995CA2016444C Luminance signal/color signal separating circuit and noise reduction circuit using a comb filter
05/16/1995US5416799 Dynamically adaptive equalizer system and method
05/09/1995US5414571 Adaptive equalization circuit for magnetic recording apparatus having high error immunity
05/09/1995US5414311 Sample and hold circuit and finite impulse response filter constructed therefrom
04/1995
04/26/1995EP0650281A1 Adaptive precoding and preemphasis for trellis coded modulation systems
04/23/1995CA2130538A1 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel
04/19/1995EP0649235A1 Method and apparatus for channel equalization
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